Use of Artificial Recharge to Rectify Adjacent Building Deformation due to Dewatering
Yuan Hua*, 1, 2, Li Linqing2
Identifiers and Pagination:Year: 2015
First Page: 510
Last Page: 514
Publisher Id: TOCIEJ-9-510
Article History:Received Date: 27/8/2014
Revision Received Date: 21/11/2014
Acceptance Date: 19/12/2014
Electronic publication date: 31/7/2015
Collection year: 2015
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Uncontrolled and unreasonable foundation pit dewatering is often the primary cause of deformation of the nearby buildings. It is therefore imperative to diminish or eliminate negative influence during dewatering. This paper describes the application of artificial recharge to rectify adjacent building deformation due to pumping. Based on the principle of potential function superposition, a water line equation with pumping and injection well’s steady or unsteady simulation operation in a confined aquifer is deduced, thereby an “influence radius” concept for unsteady flow has been proposed. Through a project example, the control effect of recharge for nearby building deformation due to pumping has been evaluated, results of which confirm that recharge can be used as an effective management method. Moreover, some suggestions regarding the layout of recharge wells are put forward.